论文标题

山丘或山脉内的谐振放大地震反应

Resonant amplified seismic response within a hill or mountain

论文作者

Wirgin, Armand

论文摘要

从理论上讲,我们在与突起的地震反应(从平坦地面出现)的地震反应(例如山丘或任意形状的山)有关的“(表面形状)共振”一词表示。我们解决了提交给SH平面波的矩形形状的圆柱突起的特定问题。我们发现,山的地震反应的主要(即定性)特征与山丘的主体非常相似,并且这些结构内的位移场的有意义放大的发生是由于入射波与(表面形状)共振的耦合所致。

We show theoretically what is meant by the term '(surface shape) resonance' in connection with the seismic response of a protuberance (emerging from flat ground) such as a hill or mountain of arbitrary shape. We address the specific problem of cylindrical protuberances of rectangular shape submitted to a SH plane wave. We find that the principal (i.e., qualitative) characteristics of the seismic response of a mountain are quite similar to those of a hill, and that the occurrence of significative amplification of the displacement field within these structures is due to the coupling of the incident wave to (surface shape) resonances.

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